Loose-leaf binder



.nine 12, 192s. A 1,673,411

A. J. LLOYD vLOOSE LEAF BINDER Filed Nov. l1o. 1927 Zyl j Pfam l) f6 nlllllln 1 IIIIIIIIIIIIIIIIIIIIII gm 111111 i .'Pwmm Patented June 12, 1928.

sPAreN'rfoFr ARTHUR J. LLoYn, or oai; PARK, iLLINors, Assrenon To W. G. LLOYD COMPANY, or

Lamu ice. j

CHICAGO, ILLINOIS, A GRIEORATION` 0F ILLINOIS LOOSE-LEAF BINDER.

Application filed November 10, 1927'. Serial No. 232,338.

This invention relates particularly to looseleaf binders of the type employing flexible chain-posts and suitable take-up mechanism for purpose of adjustment.

The primary object of the invention is to `provide simple and improved extension means' for the chain-posts in binders having only one of the clamping-members equipped with take-up mechanisl The invention is illustrated in its pre ferred `embodiment in theaccompanying drawing, in which Fig. 1 is a sectional `view of a loose-leaf binder embodyingthe invention, the section i being taken in a plane parallel with the rear end of the binder, as indicated at line l of Fig. 4; Fig. 2, an enlargedsection taken as indicated at line 2 of Fig. 1; Fig. 3, a perspeotive view showing `one of the post-guides with which one of the clamping-members of the binder is equippedatfits inner side;` Fig. 4, a broken sectional view taken as indicated at line 4 of Fig.4 1, it being kunderstood that this view is parallel with one side of the binder; and Fig. 5, a broken sectional view taken as indicated at line 5 of Fig. 1, but

showing vthe condition when the insert post` sections shown in Fig. 1 are omitted and the chain-posts are connected dierctly` to the rigid post-sections which are `permanently mounted on the clamping-members which are not provided with take-up mechanism.

In the construction illustrated, A and BA designate the clamping-members of a looseleaf binder; C designates take-up mecha-f nism housed Within `the clamping-member A; DD designateflexible chain-posts hav- .ing portions housed in the clamping-member A and connected with the take-up mechanism thereof; E, E designatepost-sections permanently swiveled -on the clamping member B; and F, F designate insert post-` sections which may be inserted between the swiveled post-sections and the adjaeent'ends of the chain-posts.

It is preferred to make the clampingmembers A and B Vboth hollow. Preferably, each clamping-member'is formed integrally "from ay piece of sheet-metalwhich is folded upon itselfand provided with a hinge-eye aty 1. One member'of the folded metal is bent inwardly to provide the inner edge-Wall 2,

. inwardly curved The chain-posts D may be of yconstruction.` In the illustration givemeaoh post comprises a `series of links 16 of ap` proximately circular' cross-section, but prometal is extended, as indicated, to provide the outer side-Wall 4 and the rearv edgefwall 5 of the clamping-member- Themetal is then bent to provide a flange 6 which constitutes a part of the inner side-wall of the: cla1nping-member and'whioh is separated from the edge of the flange 3 by a longitudi-,i vnal space?. i

In the caseof'ithe olampinganemberA,

ywhose ends are swiveled ink interior fittings '11 with whichthe hollow bar A is provided near itsv ends;` and nuts 12`slidably mounted within the member A and having secured thereto at points 13 the adjacent links of the chain-posts.A

i The nuts 12are` provided with tapped peri forations throughv which the screw-rod Works. The extremities of the clampingmember A are equipped with caps 14, one of which is provided with a perforation 14j through which' a key may be inserted. vThe adjacent end of the screw-rod is provided with an angular shank 15 adapted to receivey the key.

any suit-able vided at their inner :sides with slots; and a series of smaller links 17 housed 1n said slots and connecting the links lo.`

The free end-link 18 of each chain-post is vprovided kwith a-threaded stud 182L which is adapted to be interlockingly connected with i the corresponding swiveledy `socket member E, or with an insert postsection F, as may be desired.

The hollow clamping-member B is shown provided with post-bases 19ivhieb are lo cated Withinthe hollow body. These `postbases are shown as U-shaped sheet-metal members extending across the slot 7 of the member B and secured to the flanges 3 and 6 by means offepot-Welding. i f

Thepreferred manner of securing the swiveled post-sections E to the bar B is by riveting a heavy stud 2O to the post-base I19. The :stud 20 extends inwardly toward the i affordedk by the flexible posts tend the fi'exihle posts.

be' shifted towards the ciampinganeinber A, thereby giving' access bar A and isprovided with a peripheral gi'oove which'fis engaged by an inturned iiaiige 21 with which the swiveled post-sec- The post-section E is shown as an interiorly threaded sleeve having a socket-member 2l which is adapted to engage'either the socket-member '18'1 of the chain-post,V or a corresponding socketmeinber of the insert post-section F.

The insert post-section F isprovidedv with threaded socket-'ineinbers 22y and 23, the

'former being adapted to screw into the socketnieinber 2l-` and the `latter being adapted to screw onto the socket-member In practice,'cover-sections (not shown) usually are connected with the hinge-eyes V1 by means of suitable pintles. Itiwill be understood that in the use of the binder, the insertpost-sectionsF are'not employed until it is desired to expand the capacity of the binder beyond 4the capacity normally in Connection with the take-up mechanism. When, however,y the accumulation of leaves in the binder becomes sufficiently ygreat to Warrant the in- `troduction ofthe insert-post-sections, such sections may be inserted, itbeing understood that any .desired number of interchangeable post-sections F "maybe supplied with each hinder.

then the leaves are, in they book, assuming i the insert post-sections to be employed, access 35; -to the swxfeledpost-sections E cannot be had Without first. employing a4 key to aetuate the take-up mechanism in a direction to ex- After suchA extension, the leaves can tol `theswiveled post-sections for the-purpose oit enabling insert post-sections to be introduced. inasmuch asfthe clampingmember is an integral member with an intact outer side-wall` there is no chance `fo access to vthe sivivelcd post-section, except, by manipulatingr thev takelup mechanism in the clampinganember A, which requires the use of a key. It will beunderstood` therefore,

that there is an advantage in having the swiveled members E mounted on the clamping-bar B -through the medium of the studs,

or short postsrQO.` This arrangement obvi- Aates Vthe dangerot an vunauthorized person being able to'press the leaves toward the top clamping-tari' A in sueha manner as to give access to the siviveled post-sections.

' 1The construction described is extremely i simple and thoroughly` adapted `to the purpose. f

desired ca`piicity-liyftlie use of insert post- 4sections and asmgle take-up mechanism will sutiice,

*The connections lbetween y the siviveled post-sections andthe liexible chain-posts, or

cuie by Letters Patent.Y is:

The binder can be extended lto any -only and no unnecessary limitations should be understood therefrom.

What I regard as new, and desire to se- 1. In'conibination in a binder, a hollow clamping-ineiiiber having take-up mechanism mounted therein and having postguides atits inner wall, fiexible chain-posts having port-ions Within said clamping member connected *with said ytake-up mechanism and having portionsfextending through said guides and equipped at their free extremities with coupling-members, and a companion clamping-member having short inwardly extending thereon and equipped with swively coupling members interlockingly engagingsaid firstnamed coupling members.,` e f i Q .In Vcombination in a` binder, a hollow clamping-member vhaving take-up mechanism mounted therein `and having postpost-sections permanently mounted guides at its inner Wall, `flexible chain-posts' having portions within said clamping-membei" connected "withk said take-up mechanism and having portionsl extending through said guides and equipped at their. freeextreinities with coupling-members, a companion clamping-member having short inwardlyy extending post-sections permanently mounted thereon and equipped withy swivel couplingy members interlockingly engaging saiditirstnamed coupling-members. and insert postsections adapted to be inserted between the swiveled post-sections and the adjacent ends of saidchain-posts and having scicket-menrf i ing through said guides and having portions in said clamping-member `connected with said nuts, the tree ends'of said chain-posts havingl reduced threaded'portions, yand a companion clamping-member having short posts rigidly secured thereto and interiorly threaded tubular members swiveled on` Said shortposts and screwed onto said threaded f extensions.

4. Inpcombination in a binder,l afhollovir` clamping-member having'a right and left threaded screw ,mounted therein and having also at its inner side a pair of postguides, nuts on said ecreWJ-rod, chain-posts extending through said guides and yhaving portions in saidr clamping-memberconnected with said nuts, the free ends of said chainpostshaving reduced threaded portions, a companion clamping-member having short posts rigidly secured thereto and interiorly threaded tubular members svviveled onl said short posts and screwed onto said threaded extensions, and insert post-sections having at one end reduced threaded extensions and at the other end interiorly threaded socket-V members7 said insert 'postesections being adapted to be introduced between said chainposts and said swiveled tubular members.

5. A binder comprising a hollow clampinganember equipped interiorly With takeup mechanism and provided at its inner side With post-guides, chain-posts extending through said guides and connected with said take-up mechanism, said chain-posts having terminal links equipped with reduced threaded extensions7 a companion hollow clamping-member provided at its inner side with a longitudinal slot, post-attaching plates Within said last-named member bridging said slot and securedto theI inner side- Wall of the membenshort posts ixedly secured to said plates, and interiorly threaded sleeves swiveled on said short posts and adapted to screw onto thethreaded extensions of said chain-posts.

n ARTHUR JQ LLOYD. i 

